Mark 2 Portable AC

Brief product introduction

ZERO BREEZE Mark 2 was created to solve the problem of enjoying coolness in outdoor freely. Because the existing portable air conditioners are bulky and power-hungry. They are not for outdoor. Max designed a first real portable battery-powered air conditioner which is impossible as considered by traditional air-conditioning industry experts.

2300BTU Mark 2 AC runs with its battery for 3~8 hours. About 1/5 power consumption of conventional air conditioners. No generator, water or ice required. Weighs only 16.5lbs. Take and go easily.

Mark 2 is not limited by the power supply and is free to use anywhere, such as in tents, camping, the RV, in the car, outdoor sports, boats, small aircrafts, or any place you need it.

ZERO BREEZE Mark 2 comes with a 30—day money—back guarantee and a 1-year warranty that includes free repairs, replacements and parts replacement. Learn more.

ZERO BREEZE Mark 2 comes in 3 types and all of them have the same functions and features, what makes them different is the extra battery feature which is optional to purchase.

The Basic – No batteries (Powered by shore)

The PLUS – One battery (Up to 6 hrs cooling)

The PLUS EXTRA – Two batteries. (Up to 12 hrs cooling)

Note: There are many factors affecting the cooling time, such as ambient temperature, humidity, and insulation. Here are reference values.

1 X ZERO BREEZE Mark 2 Air Conditioner

1 X 24V DC Power Adapter For Wall Outlet

1 X Drainage Pipe

1 X Front Air Outlet Duct

2 X Venting Hoses

1 X Front Air Outlet Duct Connection Adapter

1 X Venting Hose Connection Adapter

1 X IR Remote Controller

2 X Screws For Connection Adapter

1 X ZERO BREEZE Mark 2 User Guide

Explanation of technical terms

What BTU Stands For?

According to EIA, A British thermal unit (Btu) is a measure of the heat content of fuels or energy sources. It is the quantity of heat required to raise the temperature of one pound of liquid water by 1 degree Fahrenheit at the temperature that water has its greatest density (approximately 39 degrees Fahrenheit).

What BTUs Mean to Your AC?

Air conditioners come with BTU ratings. This rating substantially tells you how powerful the unit is. Air conditioners remove heat from the air and circulate cool air back in. Here, BTUs measure how much heat is removed per hour.

Read more to learn how many BTUs do you need?

The power consumption is related to the working mode, the airflow, the humidity, and the temperature of the environment. Its EER rating is 9.58. This means that Mark 2 has the highest energy efficiency rating.

Rocket or cool mode: 150~240W(3~5h)

Sleep mode: 120~150W(5~7h)

Fan mode: about 20W(42h)

Watch more.

ZERO BREEZE Mark 2 AC uses R134A refrigerant. No need for ice or water. The feedback data of the engineer will not require any adjustment for normal operation for at least 4 years. Unless the air conditioner fails, please contact support@zerobreeze.com or submit troubleshooting.

The Sound Level of Mark 2 is 52dB (A).

ZERO BREEZE declined the option of the cheap and conventional home AC compressors.

The 24V Micro Inverter Compressor

As the core of the air conditioner, ZERO BREEZE clearly specified that the small size, lightweight, low power consumption, and DC compressor are the preferred goals of Mark 2. To achieve this goal, we worked hard with professional refrigeration engineers, compressor R&D experts, leading manufacturers.

Bringing compressors, which can exclusively be used for special equipment, into daily life.

Now, Mark 2's compressor is about the same size as a cola can, less than a quarter of the size and weight of conventional compressors. It indeed costs 4 times more than a conventional compressor, but truly worth it. Because this is what rocks the portable air conditioner market.

Cooling effect

The ZERO BREEZE Mark 2 generates 2x the cooling power with 2300 BTU and 40% higher cooling efficiency compared with Mark 1.

Temperature of the breeze drops 30°F / 10℃ Within 10 mins.

*Operating in a 96°F/36℃ laboratory can roughly reflect the performance of the ZERO BREEZE Mark 2.

When we are going to cool down a given size space, the cooling effect is closely related to the number of people inside, the insulation condition, the sun exposure, and so on.

Based on our test, it’s ideal cooling space is 25~40 sq ft, while the ambient temperature is 100F/38C, humidity is about 50%, no direct sunlight, good insulation condition, and the temperature can be reduced by 9-22°F/5-10°C.

Mark 2 is helpful in practically any space. Use Mark 2 as a spot cooler when you are in a large space. When working at maximum speed, the cool air can be blown as far as 79 inches (2 meters).

No. Mark 2 is a real air conditioner with compressor. No water or ice needed.

Power supply

It takes about 6 hours to charge up the battery by official power adapter.

When all the indicators stop flashing, the battery is fully charged. It can be used for 3.5~5 hours.

The battery can be charged and discharged over 500 times but it will eventually wear out.

We have US, CN, JP, AU, EU and UK standard.

We will deliver the socket according to the customer's receiving address. Customers can also note the required socket specifications when placing an order.

Shore power is also available.

Or you can use Mark 2 AC with Mark 2 battery for 5 hours cooling. It takes about 6 hours to charge a battery fully. It can be charged by solar, in-car charging. Or use your own battery to power Mark 2 AC.

The 24V compressor and 24V drive circuit will generate less current, improve the efficiency and battery running time under the condition of the same cooling power.

The car mode was made to avoid draining your car battery completely when powering your Mark 2.

In default mode, when the power supply voltage is lower than 18.6V, the air conditioner will stop working automatically.

Press and hold the “+” and “-”button at the same time (hold for 2 seconds), Mark 2 will enter the car mode (tail indicator light will be purple). In this mode, when the power supply voltage is lower than 22.3V, the air conditioner will automatically power off to prevent the car battery from running out.

When the “+” and “-” button are pressed and hold for 2 seconds again, it switches to the default mode.


With dual hose venting heat system, the heat is removed from inside to outside through Mark 2 AC.

One hose takes in the outside air, then the air flows across the condenser. The heat is transferred to the refrigerant and finally released into the outside air through another hose.

The best way to cool down a limited space is to connect the two hoses and separate them slightly out of the window or outside the door.
 Both are in the Mark 2 box.

ZERO BREEZE had integrated a revolutionary dual hose system to draw in fresh outside air and exhaust hot air through another hose.

Dual Hose allows an intake hose to be used to circulate fresh air inside. No negative pressure in the room. And it provides a better performance and maximized output cooling power.

The Mark 2 battery package includes two foam adapters. So if you ordered the battery, you can use the foam adapter to extend the hoses to the outside.

Outer diameter: 4.37in/11.1cm

Inner diameter: 3.94in/10cm

If the hose we provide isn’t long enough, you should be able to find a hose with the same diameter online. Here's the reference link.



1. To ensure proper drainage while Mark 2 is running, we recommend that you place the lean it backward 5-10 degrees (pad the front), not forward, left or right. Otherwise the condensed water will leak from the front, side or bottom of the air conditioner.
*Do not forget to position buckets or bags to collect the water.

2. Do not move the Mark 2 AC immediately after using it. Tilt the Mark 2 AC backwards slowly by 30 degrees to ensure that the water in the Mark 2 AC is drained.

Note: if there is leakage due to improper placement, there is no need to be nervous, just wipe it or cool it naturally, it will not affect the performance of the unit.

Length: 31.5in/80cm

Outer diameter: 0.55in/1.4cm

Inner diameter: 0.47in/1.2cm

Accessories to upgrade your experience.

The Mark 2 battery can be charged from a 12V power source like your own power station or vehicle power through the 12V to 24V DC-DC Converter.

There are two functional connectors, one is for a 12V car cigarette interface, and the other is for wiring directly to your 12V battery positive and negative electrodes.

Mark 2 can be powered by ElecHive portable power station for 10~20 hours cooling.

Power Extension Dock can help Mark 2 AC connect with one or two Mark 2 batteries. The running time will be last about 10 hours.

ZERO BREEZE 100W solar panel can be connected directly to the Mark 2 Battery. Adapter cable is inclued.

The Power Extension Dock can charge and discharge the Mark 2 battery at the same time, and power the Mark 2 AC with one or two Mark 2 batteries in parallel.

ZERO BREEZE Mark 2 can be powered by 24V battery or power adapter to access 110-240V power supply. Its maximum power is about 210W, and the maximum current is about 9A.

Make sure your 24V battery can provide enough power (210W) before using your own battery. And you need the DIY cord with GX16-4 connector can be used to power Mark 2.

If you have a 110V-240V inverter power system which has more than 250W power, you can use the adapter comes with Mark 2 to make the air conditioner work.

Please pay attention to the following essentials.

1. Check the battery output interface for voltage output.

2. If the battery is 24V DC output, the DIY cord with GX16-4 connector can be used to power Mark 2.

3. If the battery is 110/220V AC output, you can use the Mark2's own adapter to connect to supply power.

4. If it is another output voltage, you need to use our dedicated converter to ensure that the voltage connected to the air conditioner is 24V. For example, if your battery output is 12V, then you may need such a converter.

Please note that when using your own battery to power the Mark 2, you will need to be aware of your operation. ZERO BREEZE will not be responsible for damage caused by your operation. Watch more.

EcoFlow, Goal Zero and Bluetti are three brand power stations that support DC power, which can charge Mark 2.

To power your air conditioner with a power station, the first thing you need to check is that your power station provides the same voltage as your air conditioner. If not, you will need a power converter. For example, if the power station output is 12V and your air conditioner input is 24V, then you need a 12V to 24V converter.

Here are the accessories required for the available models.

12V/25A cable for EF DELTA Pro

12V/25A cable for Goal Zero YETI6000X/YETI3000X/YETI1500X

12V/25A cable for BLUETTI AC200MAX

12V/25A cable for BLUETTI AC200P

Read more.

Mark 2 comes with 1-year warranty.

The 2-year and 3-year Mark 2 care+ are available for the order within 30 days of receiving. Learn more.

Cleaning and storage

For safety purposes, please turn off the power and unplug the cord before working on the Mark 2 unit.

Remove and clean the filter.

We recommend using a vacuum cleaner to clean the condenser and evaporator of the Mark 2 unit.

It is recommended that the Mark 2 unit be cleaned before storage.

To extend the battery life of the Mark 2, you need to charge it to about 80% (shows 4 blue indicators) before storing it. If your storage time is more than 6 months, it is recommended to check the remaining charge every 6 months and charge to 80% when it is below 20%(shows 1 blue indicator).

We have designed a perfect size bag for the ZERO BREEZE Mark 2 air conditioner and its accessories. If you are interested, please contact customer service. support@zerobreeze.com

Never store your air conditioner on its side, as this can damage it.

It’s best to store the AC unit in an area that is cool and dry.


The Infrared remote control can reach up to 39in/1m. You can reflect the signal off shiny things and it will still work.

Controller physically oriented towards the receiver, no obstacles, and no disturbance of other light sources. The receiver is located in the center of the control panel of the Mark 2 air conditioner.

No. Considering that the cooling capacity of Mark 2 is 2300BTU/h , which is quite different from traditional home or car air conditioners.

It is not yet possible to achieve constant temperature control in a specific size space. When we are going to cool down a given size space, the cooling effect is closely related to the number of people inside, the insulation condition, the sun exposure, and so on.

Mark 2 has a temperature display at the air outlet, which shows the blowing temperature. You can adjust the temperature of the blown air by selecting different working mode and air volume.

E03 code means low voltage protection.

The unit shuts off, buzzer alarms, and tail LED light flashes. The battery runs out. And in normal mode: the output voltage is lower than 18.6V; in car mode: the output voltage is lower than 22.3V.

Please charge the battery to meet the input requirement of the Mark 2 AC’s output voltage.

Please contact ZERO BREEZE customer service department. support@zerobreeze.com Or submit a troubleshooting.

Mark 1 Portable AC

An extra cord with an Aviation connector is needed.

No, you won't be able to run ZERO BREEZE without being "plugged in" if you don't purchase the additional battery.

Using the ZERO BREEZE in a car or truck for short periods of time is ideal for use with the 12V battery. ZERO BREEZE allows you to use AC in situations like waiting in the carpool line, eating lunch, or grabbing a quick nap in your car during a work break. Of course, never leave your pet alone in a warm vehicle as this could lead to harm to your pet. For that reason, we do not recommend using the ZERO BREEZE for that purpose.

It is 120 to 150 Watts.

3.5 to 5 hours

No, ZERO BREEZE Mark 1 will not release any gases.

Different from the most room or portable air conditioners, the ZERO BREEZE Mark 1 is not designed to cool an entire room to a set temperature. It is made specifically to cool the area right in front of the fan for more personal comfort for you and your guests. The temperature of the cool air from ZERO BREEZE can be 10F lower than ambient temperature.  

Please make sure the power system can supply stable 12V, 15A DC power and ZERO BREEZE will work.

No water or ice is required. ZERO BREEZE Mark 1 is refrigerated by a compressor. 


The life span of ZERO BREEZE Mark 1 is designed to have 5-6 years.

ElecHive Portable Power Station

1 X ElecHive 2200 User manual

1 X Car Outlet charging cable

1 X 12V Outlet adapter

1 X 240W power supply

1 X ElecHive 2200 Portable Power Station

Note: 1250W or 600W fast charger need to be additional purchased. 

Yes. For example, ElecHive can power "Dometic CFX" 40W for about 2.6 days. Generally speaking, the cooling time depending on the power of your refrigerator and how frequently you open the fridge door. 

Check the amount of power your appliance or device requires. The combined total Wattage being used by all of your appliances/devices cannot exceed 2200W. If you do exceed the maximum wattage, ElecHive’s battery management system will power down the generator.

2.5 hours through 1250W power supply.

3.5 hours through 600W & 240W power supply.

5 hours through 600W power supply.

11 hours through 240W power supply.

21 hours through 120W cigarette socket.

25 hours through 100W USB-C port.

*Note: 1250W or 600W fast charger need to be additional purchased. 

For safety's sake, and we do not recommend using other brand solar panel to recharge ElecHive. Since we can not guarantee other brand quality and provide after-sale service for it if it is damaged by other solar panels. 

As long as your gas generator can handle more than the charger power drain consistently, it should be no problem. For example, if you use the 1250W charger, the inverter of the gas generator is able to handle the input required for the 1250W. The same goes for 600W and 240W.

Please recharge the ElecHive within an ambient temperature 14-104°F/ -10-40°C and the operating temperature is -4-104°F/-20-40°C. In the meanwhile, the advised storage temperature and humidity is -40-140°F/- 40-60°C, <95%RH.

Solar Panel

This solar panel can directly charge the Mark 2 battery, thanks to the latest MK2 battery's integrated MPPT solar charging function, which allows it to maintain its maximum charging state. It takes about 9 hours to fully charge in good sunlight conditions.

We need to be aware of weather changes. Do not place it in the rain, or soak it in water. The ETFE-laminated case is durable enough to extend the life of the solar panel. It is IP65 water-resistant that will protect from water splashing.

Yes. The 200W/400W solar panels includes accessories to enable the simultaneous use of multiple solar panels.

Yes, it can be used through a car window. However, it will decrease the efficiency of the solar panel. It is better to place them in an open space.


Shipping & Delivery

Once your order is successful, the system will automatically register a ZERO BREEZE account for you. The user ID will be the email that you used to place the order. You can reset the password by clicking the link below and log in to your ZERO BREEZE account to track your order.

The nation, product quantity, category, and color cannot be changed once an order has been placed. If you need to change these details, please cancel the order and purchase again. Due to different states and cities having different tax rates, we do not allow our customers to change the city, state, or ZIP code after the order has been placed when the order is paid for via credit card or bank transfer. If the order is paid for via Paypal or klarna, no changes can be made since the payment service provider verifies shipping address information before they approve payment.

If your order has not been shipped, you can log in to your ZERO BREEZE account and cancel your order in “My Orders” on the ZERO BREEZE Store. If your order has been shipped, you cannot cancel it. Please contact the customer service team to apply for a sales return. 

Yes. The consignee will be responsible for extra delivery charges if delivery failures are caused by the consignee. Shipment charges for returned products because of order cancellation or package rejection after the goods have been shipped will be at the consignee’s own expense and will be deducted from the refund. Shipment charges for returns without reason will be at the customer’s expense, and will be deducted from the refund.

The ZERO BREEZE Online Store sells and ships products to end-user customers only. You may not commercially distribute, publish, license, or resell any products or services obtained from the ZERO BREEZE Online Store. We reserve the right to cancel your order and refund the original account if we detect one of the following violations before the goods are shipped out or signed for:
1) Ordered products exceed the purchase limit with the same ZERO BREEZE account;
2) A single account does not violate the purchase restriction, but an individual is determined (through payment account, delivery address, IP address, contact number, or other methods) to be linked to numerous accounts which cumulatively violate the purchase restriction.
3) ZERO BREEZE receives notification from the credit card issuer or PayPal that the transaction was somehow fraudulent.
4) ZERO BREEZE determines that the purchase was made through improper means or finds evidence that the order was not made legally.


Go to the checkout page, follow the steps and fill in the necessary information. There are “use coupon code” buttons on the order summary section.
To use coupon code, click on “Use a Coupon code” and enter the coupon code you have in the blank column. Don’t forget to click on “Use Coupon” to continue the order.

It depends on your payment method. If you are paying for your order with an international bank card, the purchase price may fluctuate with exchange rates. In addition, your bank or credit card issuer may also charge foreign conversion fees. Please contact your bank or credit card issuer for any questions regarding these fees. Extra charges will not be shown on your online order, and ZERO BREEZE does not take any responsibility for extra charges incurred while making payments with international bank cards.

ZERO BREEZE can only arrange shipment after the klarna has cleared, which can take up to 3-6 business days. Please contact klarna to determine when the payment will clear.

If your payment has been declined, you will need toplace your order again. We’re not able to reinstate an order once the payment has been declined. To help ensure your order is not declined when placing a new order we suggest checking the following:
1) Your order information (eg. phone number, email address) before submitting your order; if you are shipping to a business address, make sure to put your name on the order.
2) Card details to make sure the information is correct, e.g. the expiry date and your billing address.
3) Enter the correct security code - that's the three digit number on the backside of your card.
4) Your card issuer may have declined your payment. As they don't tell us the reason for this, it's best to check with them.
If you have checked all of the above, try paying with another card or with another form of payment.

Refunds will be processed using the same method that was used to make the payment. The refund process will be completed in about 7-14 business days, depending on the bank or credit card issuer.

We understand the importance of security in online transactions. ZERO BREEZE takes all necessary security measures to protect your credit card and other confidential personal information. ZERO BREEZE does not share this information to any outside organizations.

Repair Request

1) Request Service: Describe the product's issue and provide your information.
2) Assessment and Repair: The service center will evaluate your information and determine the repair method.
3) Receive Your Product: The Service Center will send the repaired or replacement product to your address.

If your area is within ZERO BREEZE Repair* service range and the product assessment shows that ZERO BREEZE is responsible for the product's issue under warranty, all shipping fees will be covered by ZERO BREEZE. If the product or component damage is due to user error or is the product is out of warranty, you are responsible for shipping fees to your address.
*Repair policies vary by region. For more details, please contact ZERO BREEZE Support.

For Repair: It is recommended to send us the defective product or components together for testing.
For Replacement: It is recommended to send us the entire product set, including all components, packaging, accessories, gifts, and user manual.

If your product needs to be repaired or replaced, you can submit an Online Service Request. If you want to request a return or refund service, or the products cannot work, please contact ZERO BREEZE Support or submit troubleshooting.